From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next PATCH 08/12] dcbnl: Add support for setapp/getapp commands to dcbnl Date: Fri, 14 Aug 2009 15:43:46 -0700 Message-ID: <20090814224346.1640.72037.stgit@localhost.localdomain> References: <20090814223857.1640.26881.stgit@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from qmta10.emeryville.ca.mail.comcast.net ([76.96.30.17]:32808 "EHLO QMTA10.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757228AbZHNWoF (ORCPT ); Fri, 14 Aug 2009 18:44:05 -0400 In-Reply-To: <20090814223857.1640.26881.stgit@localhost.localdomain> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: davem@davemloft.net Cc: netdev@vger.kernel.org, linux-scsi@vger.kernel.org, gospo@redhat.com, Yi Zou , Peter P Waskiewicz Jr , Jeff Kirsher From: Yi Zou This patch adds dcbnl command definitions to support setapp/getapp functionality from the IEEE 802.1Qaz Data Center Bridging Capability Exchange protocol (DCBX) specification. Section 3.3 defines the application protocol and its 802.1p user priority in DCBX, which is implemented here as a pair of setapp/getapp commands in the kernel dcbnl for setting and retrieving the user priority for an given application protocol. The protocol is identified by the combination of an id and an idtype. Currently, when idtype is 0, the corresponding id gives the ether type of this protocol, e.g., for FCoE, it will be 0x8906; when idtype is 1, then the corresponding id gives the TCP or UDP port number. For more information regarding DCBX spec., please refer to the following: http://www.ieee802.org/1/files/public/docs2008/ az-wadekar-dcbx-capability-exchange-discovery-protocol-1108-v1.01.pdf Signed-off-by: Yi Zou Acked-by: Peter P Waskiewicz Jr Signed-off-by: Jeff Kirsher --- include/linux/dcbnl.h | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-) diff --git a/include/linux/dcbnl.h b/include/linux/dcbnl.h index 7d2e100..b7cdbb4 100644 --- a/include/linux/dcbnl.h +++ b/include/linux/dcbnl.h @@ -50,6 +50,8 @@ struct dcbmsg { * @DCB_CMD_SNUMTCS: set the number of traffic classes * @DCB_CMD_GBCN: set backward congestion notification configuration * @DCB_CMD_SBCN: get backward congestion notification configration. + * @DCB_CMD_GAPP: get application protocol configuration + * @DCB_CMD_SAPP: set application protocol configuration */ enum dcbnl_commands { DCB_CMD_UNDEFINED, @@ -80,6 +82,9 @@ enum dcbnl_commands { DCB_CMD_BCN_GCFG, DCB_CMD_BCN_SCFG, + DCB_CMD_GAPP, + DCB_CMD_SAPP, + __DCB_CMD_ENUM_MAX, DCB_CMD_MAX = __DCB_CMD_ENUM_MAX - 1, }; @@ -114,6 +119,7 @@ enum dcbnl_attrs { DCB_ATTR_CAP, DCB_ATTR_NUMTCS, DCB_ATTR_BCN, + DCB_ATTR_APP, __DCB_ATTR_ENUM_MAX, DCB_ATTR_MAX = __DCB_ATTR_ENUM_MAX - 1, @@ -338,5 +344,17 @@ enum dcb_general_attr_values { DCB_ATTR_VALUE_UNDEFINED = 0xff }; +#define DCB_APP_IDTYPE_ETHTYPE 0x00 +#define DCB_APP_IDTYPE_PORTNUM 0x01 +enum dcbnl_app_attrs { + DCB_APP_ATTR_UNDEFINED, + + DCB_APP_ATTR_IDTYPE, + DCB_APP_ATTR_ID, + DCB_APP_ATTR_PRIORITY, + + __DCB_APP_ATTR_ENUM_MAX, + DCB_APP_ATTR_MAX = __DCB_APP_ATTR_ENUM_MAX - 1, +}; #endif /* __LINUX_DCBNL_H__ */